JPH033451Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention is used by being installed in an automatic bagging device. is inserted into and supported by a pair of rotating shafts for supporting bag suspension, and the grain storage is The present invention relates to a bag feeding mechanism of a grain bagging device configured to feed a bag to a predetermined position below a grain discharge port.

[Prior Art] In this type of bag feeding mechanism, the bag is fed out with the eyelet fitted into the threaded part of the rotating shaft, thereby suppressing the floating of the eyelet during feeding and smooth feeding. Conventionally, the configuration for performing
A lifting prevention member was provided that was in contact with or close to a certain width of the upper edge of the opening corresponding to the region through which the shaft of the bag was inserted (for example, Japanese Patent Application No. 133901/1982).

[Problem that the invention attempts to solve]

However, since the grain storage bag itself, which is made of cloth or soft resin, protrudes from the eyelet at the upper end edge of the bag that contacts or is close to the floating prevention member, there is a large variation in the length of the bag's protrusion from the eyelet. If it is long, it may constantly come into contact with the floating prevention member during the feeding operation. Therefore, since the contact force between the blocking member and the upper edge of the bag becomes large, the eyelet part undergoes a posture change to a rearward tilting position, and falls off from the thread groove of the rotating shaft or rotates together with the screw. There was a risk of getting caught in the rotating shaft. However, if the blocking member is installed at a large distance from the upper edge of the bag, it will not be able to block the bag until it floats to the point where the eyelet falls out of the thread groove, which means that it will not be able to function satisfactorily. It didn't happen.

An object of the present invention is to provide a device that can solve the problems of the conventional structure by effectively selecting the position where the floating prevention member acts on the bag.

[Means for solving problems]

A characteristic feature of the present invention is that a member is provided which acts in contact with the eyelet to prevent the grain storage bag from floating up, and its effects are as follows.

[Effect]

In other words, since the floating prevention member acts on the eyelet, which is processed using a mold or the like and whose dimensional accuracy is controlled relatively more strictly than the storage bag itself, the desired spacing is If the holding and blocking member is set at a constant interval, the interval will not vary from bag to bag, so it is unlikely that the eyelet will come into contact with the eyelet abnormally, and the eyelet will not be lifted up due to abnormal engagement with the thread groove. Even if the contact resistance is small, since the surface that contacts the blocking member is a processed hard smooth part, the contact resistance acting on the eyelet is small. Therefore, the eyelet is not tilted backwards, escapes from the abnormal state, and is smoothly extended.

[Effect of idea]

As a result, it becomes possible to stably feed out the bag, and it is possible to suppress a decrease in work efficiency due to troubles during feeding, and the only modification required for this purpose is to make the floating prevention member act as an eyelet.

〔Example〕

Below the grain discharge port 5 of the hopper 8 in which grains are stored, a pair of left and right rotating shafts 4, 4 for supporting hanging bags is installed, and the opening width of the rotating shafts 4, 4 is attached to the rotating shafts 4, 4 near the bag opening 1. A grain storage bag 3 having hanging support eyelets 2, 2 attached to both ends of the direction is stored and supported, and the eyelets 2, 2 and the rotating shaft 4,
Due to the engagement with the threaded portion 21 of 4, the bag 3 is sequentially fed out at a constant pitch in the direction of the rotational axis as the bag 3 rotates, and the front and back of the bag 3 are continuously fed out at a constant pitch in the direction of the rotation axis. The bag opening 1 is automatically opened by the cooperative action of the strip-shaped reinforcing members 6, 6 provided on opposite sides and the screw portion 21 having a lead angle in the same direction, and the bag opening 1 is automatically opened. The first shutter 7 is opened with the movable discharge port 5A, which is held vertically slidably held by the discharge port 5, inserted into the opening 1, to fill the bag 3 with grain. This is an automatic bagging device for grains.

To explain in detail the feeding means for the bag 3, one of the pair of left and right rotating shafts 4, 4 is attached and fixed to a protruding frame 11 that is horizontally swingable around the vertical axis a, and this rotating shaft 4 is Protruding frame 11
A compression spring 18 provided between the fixed side frame 15 and the fixed side frame 15 biases it in a direction away from the other frame.

Springs 12, 12 are provided on the rotating shafts 4, 4 to elastically push out the groups of bags 3 toward the distal end side in the axial direction of the rotating shafts 4, 4, and at the intermediate portions of the respective rotating shafts 4, 4, Storage parts 13, 13 are formed to support the bags 3 in a stacked manner in the front and back, and from the intermediate part to the distal end side, rotation of the rotation shafts 4, 4 about the rotation axis in a state engaged with the eyelets 2, 2 is formed. Accordingly, threaded grooves 14, 14 are formed to feed the bag 3 toward the tip end side of the rotating shaft, thereby forming the threaded portion 21, and motors 17, 17 for rotating the rotating shafts 4, 4 are provided.

A bag floating prevention member 20 is installed directly above the rotating shafts 4, 4 along the axial direction so as to be able to come into contact with the upper edge of the bag opening 1 from above.
The left and right floating prevention members 20 are pivotally fixed at a rear fulcrum so that they can integrally swing up and down. An elastic actuation piece 16 is provided at the front end in the bag feeding direction of one of the floating prevention members 20 so as to protrude toward the rotating shaft 4 side through an opening, and the elastic actuation piece 16 makes contact with the upper edge of the bag. Limit switch 1 that detects upward movement by
9 is provided, and is configured to detect that the bag 3 is fed out below the grain discharge port 5.

The eyelet 2 is a set of two members each having a keyhole-shaped rotating shaft insertion hole 2A, which is attached to a predetermined position with both the front and rear sides of the bag 3 visible, and the upper end surface of this eyelet member is made to protrude upward from the upper edge. , are integrally formed by caulking their upwardly protruding ends together. Since the floating prevention member 20 is brought into contact with or close to the upper edge of the eyelet, the floating prevention member 20 and the upper edge 2a of the eyelet
There is little variation in the spacing between the two and a stable floating prevention function can be achieved, and the operation of the limit switch 19 can be ensured. In the figure, reference numeral 24 has the same configuration as the bag feeding sensor, which includes the limit switch 19 and the elastic actuating piece 16, and acts on the upper edge of the eyelet of the bag located in the storage section 13 to detect the remaining amount of the bag. It acts as a sensor to

[Another example]

○B As shown in FIG. 4, rolls 22 whose axes are perpendicular to each other are equidistantly spaced in the longitudinal direction of the floating prevention member 20.
A plurality of eyelets may be arranged in parallel to reduce the contact resistance between the floating prevention member 20 and the upper edge of the eyelet protruding from the upper end of the bag.

○B As shown in FIG. 5, the floating prevention member 2 is positioned below the rotating shaft 4 and along the axial direction.
0 through the eyelet 2 of the three groups of bags suspended and supported on the rotary shaft 4, and the rotary shaft insertion hole 2A of the eyelet.
is close to or in contact with the bottom edge of This blocking member 20 is a boss 23 of the frame on the base end side of the rotating shaft 4.
It is inserted into the section so that it can be screwed on.

○C As shown in Figures 6 and 7, the eyelet 2
A part of the rotating shaft insertion part 2A is cut out to provide an open part 2b facing the outside of the bag, and the floating prevention member 20 is made swingable about its own axis on the base end frame of the rotating shaft 4. At the same time as pivoting,
The bag may be configured to be able to be switched by swinging between a bag floating preventing posture in which the bag is positioned within the insertion portion 2A and comes into contact with or close to the lower side of the insertion portion 2A, and a standby posture in which the bag is retracted from the insertion portion 2A. Note that a motor with a brake may be used as the swinging means, or the swinging may be performed artificially.

[Brief explanation of the drawing]

The drawings show an embodiment of the bag feeding mechanism of the grain bagging device according to the present invention, in which FIG. 1 is an overall longitudinal side view, FIG. 2 is an overall plan view, and FIG. 3 is a front view of the automatic bagging device. 4 is a side view showing another embodiment of the floating prevention member, FIG. 5 is a side view showing another embodiment of the floating prevention member, and FIG. 6 is a side view showing another embodiment of the floating prevention member. FIG. 7 is a sectional view taken along the line -- in FIG. 6. 2... Eyelet, 3... Grain storage bag, 4... Rotating shaft, 20... Bag floating prevention member, 21... Threaded portion.

Claims (1)

[Scope of utility model registration request] A grain storage bag 3 to which hanging support eyelets 2, 2 are attached is supported by inserting the eyelets 2, 2 into a pair of bag hanging support rotating shafts 4, 4, and the eyelets 2, 2 The grain storage bag 3
A bag feeding mechanism of a grain bagging device configured to feed grains to a predetermined position below a grain discharge port 5,
A bag feeding mechanism for a grain bagging device, which is provided with a member 20 that contacts the eyelets 2 and 2 to prevent the grain storage bag 3 from floating up.